Ariz. Admin. Code § R11-2-601
A. Reclamation activities at mining units shall be designed to reduce hazards to public safety to the extent technically and economically practicable by measures, including:
B. The owner or operator shall maintain structures, equipment, and excavations at the reclamation site in a safe manner and shall restrict access to provide for public safety. Where hazards to public safety cannot be adequately reduced through reclamation measures; where buildings, structures, and excavations remain as part of the approved post-mining land use; or where a mining unit has been exempted from reclamation under A.R.S. § 27-975(A), any hazard to public safety shall be reduced by:
Adopted effective January 6, 1997 (Supp. 97-1).